| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.87 | 1.83 | 0.04 |
| Feb | 2.09 | 2.14 | -0.05 |
| Mar | 3.25 | 3.08 | 0.17 |
| Apr | 3.82 | 3.80 | 0.02 |
| May | 5.44 | 5.04 | 0.40 |
| Jun | 4.79 | 4.51 | 0.28 |
| Jul | 3.29 | 3.24 | 0.05 |
| Aug | 2.93 | 2.75 | 0.18 |
| Sep | 4.41 | 4.03 | 0.38 |
| Oct | 3.88 | 3.70 | 0.18 |
| Nov | 2.60 | 2.53 | 0.07 |
| Dec | 2.61 | 2.53 | 0.08 |
40.98 | 39.18 | 1.80 |